Eaton FNQ-1/2 Fuse - 10 kAIC at 500 Vac
Part Number: FNQ-1/2
Quick Summary
Eaton FNQ-1/2 fuse provides reliable overcurrent protection for motor control circuits in demanding industrial environments. When motor starts or transformer inrush occurs, nuisance trips slow production and complicate maintenance. This time-delay device is rated at 0.5 A and 500 V with a 10 kAIC interrupt rating, supporting motor loads. It carries CE marking and RoHS compliance, signaling adherence to European safety and environmental standards. With ferrule-end x ferrule-end connections and nickel-plated bronze endcaps, installation is straightforward in panels and control cabinets, reducing install time and lifecycle costs.
Product Information
Extended Description
FNQ-1/2 Eaton: Eaton Bussmann series FNQ fuse, Time-delay, Motor control transformers, Circuits with in-rush currents, 0.5 A, Non-indicating, Ferrule end x ferrule end, 10 kAIC at 500 Vac, Nickel-plated bronze endcap, Standard, 500 V
Product Name
Eaton Bussmann series FNQ fuse
Catalog Number
FNQ-1/2
UPC
051712786225
EAN
5027590060448
Product Length/Depth
0.41 in
Product Height
1.5 in
Product Width
0.41 in
Product Weight
0.175 lb
Warranty
Not Applicable
Compliances
CE Marked RoHS Compliant
Amperage Rating
0.5 A
Interrupt rating
10 kAIC at 500 Vac
Voltage rating
500 V
Material
Nickel-plated bronze endcap
Packaging type
Standard
Connection
Ferrule end x ferrule end
Fuse indicator
Non-indicating
Special features
Non-indicating
Bussmann series complete full line catalog no. 1007
Bussmann series Fuseology
Eaton Specification Sheet - FNQ-1/2
FNQ-1/2~FNQ-1-2~BUSS MIDGET FUSE
Feature: Time-delay protection that tolerates motor starting surges. Business Impact: Reduces nuisance trips and unplanned downtime, enabling smoother startup sequences. Application: Motor control circuits and transformers in manufacturing lines. The FNQ-1/2 fuses help maintain throughput in drives and control panels while meeting electrical codes. Long-tail keywords integrated: time-delay fuse, Bussmann FNQ fuse, motor protection fuse, inrush tolerant fuse, 0.5 A fuse. Feature: Precise 0.5 A amperage rating for small control circuits. Business Impact: Prevents overprotection that can cause tripping in auxiliary circuits, extending device life and lowering maintenance costs. Application: Control panels, relays, and small drives. Feature: 500 V voltage rating and 10 kAIC interrupt rating at 500 Vac. Business Impact: Robust fault-current handling for industrial power distribution, reducing the risk of arc-flash events and equipment damage. Application: Drives, feeders, and MCCs. Feature: Ferrule-end x ferrule-end connection for easy wiring. Business Impact: Simplifies installation and ensures reliable terminations in panel wiring, cutting install time. Application: Standard electrical cabinets and control enclosures. Feature: Nickel-plated bronze endcaps deliver corrosion resistance. Business Impact: Extends fuse life in harsh environments and minimizes replacement costs. Application: Industrial facilities with exposure to humidity or chemicals. Feature: CE Marked and RoHS compliant. Business Impact: Eases regulatory approvals and supports sustainability goals in European markets. Application: Global manufacturing with EU supply chain. Feature: Standard packaging ensures consistent stocking and quick procurement. Business Impact: Improves inventory planning and reduces lead times. Application: Channel and OEM procurement programs.
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FAQs
FNQ-1/2 uses ferrule end x ferrule end terminations, aligning with standard ferrule-type wiring blocks found in motor control cabinets. This simplifies field wiring and reduces need for additional adapters. Ensure ferrule size matches the conductor width and crimping specifications to maintain the fuse’s 10 kAIC interrupt rating and reliable performance in startup surges.
FNQ-1/2 is rated for 0.5 A continuous amperage, 500 V operating voltage, and an interrupt rating of 10 kAIC at 500 Vac. It’s a time-delay (slow-blow) fuse suitable for circuits with inrush currents, such as motor control transformers and small drives, providing protection without nuisance tripping during startup.
Yes. The FNQ-1/2 is specifically a time-delay fuse designed to tolerate inrush currents associated with motors and transformers. Correctly sizing to 0.5 A ensures protection for the control circuit while allowing normal startup surges, reducing downtime and unplanned maintenance in production lines.
FNQ-1/2 is CE Marked and RoHS compliant, signaling compliance with European safety, health, and environmental regulations. This makes it suitable for EU-installed equipment and helps streamline procurement for EU-based projects and OEMs seeking regulatory alignment.
Using FNQ-1/2 can lower total cost of ownership by reducing nuisance trips during motor starts, extending equipment life, and lowering downtime. Its robust 10 kAIC rating provides strong fault protection for drives and transformers, while standard ferrule-term connections speed installation and serviceability, improving overall return on investment for control panels and MCCs.